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kgigliotti's avatar
kgigliotti
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5 years ago
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10G/25G Ethernet vs 10G MAC + 10GBASE-R PHY

Hi, I'm implementing 10GbE on a Stratix 10 GX device (currently using the DK-DEV-1SGX-H-A development kit) and had a few questions with regard on how to go about this. Basic system information:...
  • Deshi_Intel's avatar
    5 years ago

    HI,


    Pls see my comment below


    1. For a new system is there any general recommendation on which IP to use, either the 25G Ethernet or a combination of LLE 10G MAC and 10GBASE-R PHY?

    • Since you are just interested with 10G application then it make more sense for you to consider either
    • LLE 10G MAC + 10GBASE-R PHY
    • or LLE 10G MAC + 1G/2.5G/5G/10G Multi-rate Ethernet PHY

    2. It doesn't seem like it, but is it possible configure the 25G Ethernet IP in such a way that it would start in, or only operate in, 10G mode ?

    • Unlikely as this IP is meant for 25G application with additional option to downgrade to 10G. So, It will start with 25G

    3. Is the main purpose of the 10G/25G rate switching (in the 25G Ethernet IP) to allow rate switching on the fly, or is this also intended to replace the 10G MAC + PHY and allow backwards compatibility with 10GbE systems ?


    Thanks.


    Regards,

    dlim